Rivet-setting machine



(No Model.) 2 SheetsSh'eet 1.

W. 0. BRAY & G. VAN HORNE. RIVET, SETTING MACHINE.

No. 429,334. Patented June 3, 1890.

Vl/ihwsses: liwerdmrs:

ykld xnu. William Clowhrnliray.

' JHorney.

(No' Model.) 2 Sheets-Shet 2. v

w. 0. BRAY &. e.- VAN HORNE. 'RIVET SETTING MACHINE;

No. 429,334. Patented June 3 1890.

1'19 5. mlk

Q In |IIII ll i'llrmwrmmmil- H UNITED v STATES PATENT OFFIC WVILLIAM C.BRAY, OF NEWTON, AND GEORGE VAN HORNE, OF EAST MILTON,

MASSACHUSETTS, ASSIGNORS TO THE TUBULAR RIVET COMPANY, OF

NEW HAVEN, CONNECTICUT.

RlVET-SETTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 429,334, dated June 3,1890.

Application filed January 30, 1890. Serial No. 338,577. (No model.)

To aZZ whom it may concern:

Be it known that we, WILLIAM U. BRAY, of Newton,,in the county ofMiddlesex and State of Massachusetts, and GEORGE VAN HORNE, of EastMilton, in the county of Norfolk and State of Massachusetts, haveinvented a new and useful Improvement in Rivet-Setting Machines, ofwhich the following, taken in connection with the accompanying drawings,is a specification.

Our invention relates to rivet-setting machines, and is designedespecially for use on machines for setting rivets in leather, cloth,rubber, or other similar materials.

Our invention consists in certain novel features of construction,arrangemenuand combination of parts, which will be readily understood byreference to the description of the drawings forming a part of thisspecification, and to the claim hereinafter given, and in which ourinvention is clearly pointed out.

Figure 1 of the drawings is a side elevation of so much of a powerrivet-setting machine as is necessary to illustrate our invention. Fig.2 is a front elevation of so much of the setting-plunger and itsaccessories as is necessary to a clear understanding of one form of ourinvention. Figs. 3 and 4' are details to be hereinafter referred to; andFig. 5 is a sectional side elevation of the parts necessary toillustrate another form of our invention.

In thedrawings, A is the bed of the machine, supporting the goose-neckor arm A, upon which are supported in suitable bearings thedriving-shaftB and plunger-operating crank-shaft C, arranged at right angles to eachother and connected by bevel-gears D and D, as shown partly in dottedlines in Fig. 1.

The shaft C has formed upon or secured to its front end the crank a,provided with the crank-pin a, upon which is fitted the block E, mountedand movable horizontally in the slot F of the yoke F, which is made intwo parts secured together by bolts or screws, the upper or cap portionhaving formed thereon the spindle or stem F which has a bearing in thestand G, and the lower portion has formed thereon the boss or hub F in ahole in which is fitted the setting-plungerFflwhich has bearings in thefront end of the arm A at b and b, as shown in Figs. 1 and 5.

Heretofore in the construction of machines of this class thissetting-plunger has been set in a fixed position in said yoke, or so asto be movable therewith, but not movable relative thereto, as shown inFig. 5, and the anvil H was set in a fixed or unyielding position in thefront portion of the bed A, although it was capable of being adjustedvertically to adapt its distance from the end of the setting-plungertothe requirements of different classes of work; but when once adjustedit was immovable, and all the rivets set would of necessity becompressed to the same dimen sions regardless of the variations inthickness or density of the material. Our invention obviates thisdifficulty by so mounting the setting-plunger and anvil that one or bothmay yield when the pressure applied thereto exceeds What is required toproperly clinch the. rivet upon the material.

F so that it may be moved endwise therein a short distance, but cannotbe rotated about its axis, said rotation being prevented by the pin 0,fixed in said hub F and passing through the slotc' in the plunger F Weplace an elliptic spring I beneath the yoke F, with its ends bearingagainst the under side of said yoke or the extension-plate J, securedthereto, and its center resting upon a shoulder d, formed upon saidplunger at the proper distance below the hub F, as shown in Fig. 2. Thespring I has formed in each end an open slot 6, which receives a pin f,set in the under side of the yoke or the plate J, said pins serving toprevent the spring moving about the axis of said plunger.

The anvil H is adjustable vertically by the set-screw K, and may restdirectly thereon, or it may rest upon a heavy spiral'spring g, the lowerend of which rests upon the disk 71, which in turn rests upon theset-screw K, as shown in Fig. 5.

The yielding plunger F and spring I may be used with a non-yieldinganvil, or the yielding anvil may be used with the non- To this end wefit the setting-plunger F to the boss or hub yielding-plunger, or bothanvil and plunger may he made yielding, care being taken to make thesprings of the requisite stiffness; hence we do not Wish to belimited inour claim to a yielding plunger or to a yielding anvil alone.

The plate J may be made separate from or form apart of the yoke F, asmaybe preferred, it being only to increase the length between thebearings of the spring I, in order that a spring of suitable lengthcould be applied to machines already constructed and having yokes ofinsufficient length for the desired length of spring, and thereforetheplate .I is to be considered as an integral part of the yoke and nota separate element.

VVhatWe claim as new, and desire to secure by Letters Patent of theUnited States, is-

The combination, in a rivet-setting machine, of the slotted yoke F, therevolving crank a, shaft 0, the crank-pin a, the block E, the plunger Fprovided With the shoulder d and movable endwise in its hearing in saidyoke, and the elliptic or leaf spring 1, hearing at each end against theunder-side of said yoke and at its middle upon the shoulder (Z on saidplunger.

In testimony whereof We have signed our names to this specification, inthe presence of two subscribing witnesses, on this 27th day of January,A. D. 1890.

WILLIAM C. BRAY. GEO. VAN HORNE.

Witnesses:

N. C. LOMBARD, WALTER E. LOMBARD.

